• 作者： Chang, Der-Ming; Yu, Cheng-Ching; Chien, I-Lung
• 中文摘要： 程序受到兩個競爭動作的效應,且快慢效應中慢效應對穩態行為的影響力較小,則此種程序的階梯響應將產生超越行為。如果應用傳統之PI控制器於這類程序時,由於考慮閉環路的穩定性,閉環路之響應結果會產生長期偏差。為解決諸如此類的問題且仍然使用現有的工業控制設備,本文提出以一個簡單的過濾器加入PI控制器的結構中,來消除整個動態的超前部分。本文中並提供一系統化的方法來識別模式之參數,並決定過濾器與控制器參數調諧方法。這種結合識別與控制器調諧的設計方式,使得控制器對此類程序具有良好的韌性與閉環路響應。
• 英文摘要： Whenever a process has two competing dynamic effects of two different time scales and the slower effect is less influential to the overall steady-state behavior, the resulting step response typically exhibits an overshoot lead-lag behavior. In applying a conventional PI controller to this type of process will lead to very long time periods of offset under the closed-loop stability consideration. In order to overcome this problem while using existing industrial controller equipment, a simple modification is proposed which adds a filter to the PI controller structure to cancel the lead portion of the overall dynamics. Moreover, a systematic procedure is suggested to identify the model parameters and to give guidelines of selecting the filter time constant and the PI settings. The combined identification and control procedure for lead-lag processes is very robust and provides an excellent closed-loop performance.
• 中文關鍵字： 識別; 控制; 穩態; 超越; 閉環路
• 英文關鍵字： Identification; Control; Steady State; Overshoot Lead-Lag; Closed-Loop